112 documents found, page 1 of 12
Influence of the milling cutter drill on implant placement accuracy in partiall...
Ferreira, Ana Raquel; Fonseca, Catarina Mendes; Correia, André; Fonseca, PatríciaPartially guided implant surgery has emerged as a technique that enhances the precision of implant placement while maintaining surgical flexibility. This in vitro experimental study evaluated the influence of the milling cutter drill on the angular and linear deviations of implant placement in synthetic polyurethane bone models using a partially guided surgical protocol. Additionally, the effects of bone densit...
Glossary of computer-assisted implant surgery and related terms. First edition
ITI Network on CAIS; Correia, AndréThe rapid development of computer-assisted implant surgery (CAIS) and the respective research and clinical applications have necessitated a standardization of the terminology related not only to different devices, but also the different steps involved, surgical and presurgical procedures. The present glossary was introduced at the 1st International Team for Implantology Symposium on Computer-assisted Implant Su...
Comparative analysis of mechanized versus conventional polishing protocols for ...
Quezada, Margarida Martins; Fernandes, Carlos; Correia, André; Fonseca, Patrícia; Montero, JavierSurface roughness is primarily determined by the inherent characteristics of a material, the specific polishing protocol and the manual operator’s dexterity. This research intends to conduct a comparative analysis between a conventional and mechanized polishing protocol concerning surface roughness and its impact on surface topography. Thirty samples were included in this in vitro study: six samples for each ty...
Assessment of maximum torque in implant-supported prostheses: a pilot laborator...
Kaffashian, Mahoor; Fazaeli, Seyedfarzad; Fialho, Joana; Araújo, Filipe; Fonseca, Patrícia; Correia, AndréBackground/Objectives: the precise application of torque during prosthetic screw tightening is essential to the long-term success and mechanical stability of implant-supported restorations. This study aimed to evaluate the influence of practitioner experience, glove material, screwdriver length, and hand moisture on the maximum torque value (MTV) generated during manual tightening. Methods: thirty participants,...
A different approach to analyzing the surface roughness of prosthetic dental ac...
Quezada, Margarida Martins; Fernandes, Carlos; Montero, Javier; Correia, André; Salgado, Helena; Fonseca, Patrícia(1) Introduction: Apart from the polishing method, conventional or mechanized, the arithmetic mean roughness (Ra) is the most common metric to evaluate the surface roughness of denture base acrylic resins. An overview of the constraints related to this roughness parameter is highlighted in this study. This research introduces new parameters for accessing a functional analysis of surface roughness. (2) Materials...
Reabilitação de caso complexo com prótese removível e resinas compostas
Cruz, Karine Sommer; Bertoz, Alessio; Fidalgo-Pereira, Rita; Correia, André; Noites, Rita; Fonseca, PatríciaIntrodução: A perda de dimensão vertical de oclusão devido à falta de dentes e desgaste dentário requer tratamentos restauradores e reabilitadores combinados para assegurar uma estabilidade funcional e estética. Descrição do Caso Clínico: Mulher, 79 anos, apresenta prótese total superior e parcial removível inferior com falta de retenção e estabilidade. Exames clínico e imagiológico permitiram diagnosticar: má ...
The antimicrobial effect of the incorporation of inorganic substances into heat...
Lima, Mariana; Salgado, Helena; Correia, André; Fonseca, PatríciaIntroduction: Polymethylmethacrylate (PMMA) is the most widely used denture base material due to its favourable properties. Several studies have tested the incorporation of anti-infective agents into PMMA as a strategy to prevent biofilm growth on the denture surface. This systematic review aims to evaluate the efficacy of incorporating inorganic antimicrobial particles into denture base resins in preventing an...
Abordagem multidisciplinar de caso de desdentação severa e desgastes dentários
Bertoz, Alessio; Cruz, Karine Sommer; Fidalgo-Pereira, Rita; Correia, André; Noites, Rita; Fonseca, PatríciaIntrodução: O desgaste dentário severo, associado à ausência de vários elementos dentários, obriga a uma abordagem multidisciplinar, para garantir uma reabilitação funcional e estética. Descrição do Caso Clínico: Homem, 65 anos, avaliado em consulta de reabilitação oral com queixas funcionais e estéticas [ausência de vários dentes, desgaste dentário severo de 13-25, e prótese parcial fixa de 43-33 com falha cat...
The effect of the interproximal creeping attachment in aesthetic site after roo...
Marques, Tiago M.; Santos, Nuno B. M.; Montero, Javier; Correia, André; Fernandes, Gustavo V. O.Gingival recession is a common manifestation in most populations. The mechanism by which gingival recession occurs is not well understood, but it seems to be complex and multifactorial. The main etiological factors are the accumulation of dental plaque biofilm with the resulting inflammatory periodontal diseases and mechanical trauma due to faulty oral hygiene techniques, especially in thin biotypes. This case ...
Screw-retained surgical guide for implant placement
Marques, Tiago; Araújo, Filipe; Valentim, Bruno; Fonseca, Patrícia; Correia, AndréIntroduction: For patients with extended edentulous areas, with existing implants, and in need of additional implant placement, the use of the osseointegrated implants for guide fixation seems to be a logical alternative. Current options for the fabrication of surgical guides in this type of cases, involve creating surgical guides that are supported by the teeth, by the teeth and mucosa or retained by fixation ...